期刊
SCIENCE
卷 302, 期 5653, 页码 2118-2120出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1090047
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Approximately 80% of the maize genome comprises highly repetitive sequences interspersed with single-copy, gene-rich sequences, and standard genome sequencing strategies are not readily adaptable to this type of genome. Methodologies that enrich for genic sequences might more rapidly generate useful results from complex genomes. Equivalent numbers of clones from maize selected by techniques called methylation filtering and High C(0)t selection were sequenced to generate similar to 200,000 reads ( approximately 132 megabases), which were assembled into contigs. Combination of the two techniques resulted in a sixfold reduction in the effective genome size and a fourfold increase in the gene identification rate in comparison to a nonenriched library.
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